Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62fe3867622b29061c338287e074938bcb1bfc59a56421ac798b0618826c2c6d' 
  AND token = 'cfIaaqOcOxKij9FP1mYJh0yYn0l9GLzAm/c4KxcFB2Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}